Go heavy on the line weight, even for the leader, not for the size of the fish you are targeting but to withstand the turbid all the silt, debris and snags in the Fraser River. I usually use between 10 and 15lb test of Maxima Ultragreen.
The terminal tackle setup varies and depends on the angler's preference. I like to use a three-way swivel with one leader to the hook and the other to the weight. I use #1 or 1/0 hooks. Just use the roe that you have been using for Capilano coho salmon.
Targeting chinook salmon by bar fishing in the tidal portion of the Fraser River can be very frustrating during this time of the year for a couple of reasons. Success rate is generally not too high due to the small number of fish in a large waterbody. You also have to deal with all the small coarse fish, which will actively feed on your bait. Fishing generally improves later on in the season, around late August, when chinook jacks become much more abundant.